Precise directional sound transmission,Sound beamforming, focusing the sound into the ear, reduces sound leakage by 95% and protects listening privacy. Lossless panoramic sound quality,laboratory specializes in 360 panoramic sound effects. Bluetooth version 5.4,The connection is more stable, the speed is faster, and intelligent noise reduction ensures high-definition calls. AI smart screen controls the overall situation,Cold light LED three-screen digital display of power, clearer and more accurate monitoring of battery life, to avoid the embarrassment of empty battery. Headphone type: bone conduction headphones Weight:34g Frequency: 20Hz-20KHz Bluetooth version:5.4 Memory capacity:32G Waterproof rating: IPX8 Charging port: Magnetic charger Charging time: about 2h Playing time: 230mAh Playing time: 8-10 hours Colour:As Shown Material:ABS Package Contents: 1 * Swimming Earphone Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.